CVE-2025-7635
High
Description
Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.
SeverityHigh
CVSS7.7
Exploit probability—
ProductCalix Gigacenter Ont
PublishedSep 9, 2025
First seenSep 9, 2025
Weakness typeCWE-306Missing authentication for critical function
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| calix calix_gigacenter_ont | No range specified, 844e, 844g, 844ge, 854ge | — |
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